A Fault-Tolerant Network Design Based on Distributed Control System

Abstract

Reliability is a critical factor in communication network design of distributed control systems. To address the insufficient fault tolerance of traditional bus networks in aero-engine applications, this paper proposes a fault-tolerant network design scheme based on a braided-ring topology. Smart communication nodes of the network were designed and implemented using FPGA. Design data conversion, validation, and mode switching functional modules in a modular manner, and conduct experiments. Experimental results validated that the proposed fault-tolerant network can maintain functionality under fault scenarios such as line interruptions or data errors, demonstrating broader fault-tolerant capabilities compared to conventional bus architectures.